Ingredients

• 2 tablespoons sesame seed oil
• 1 medium white onion, peeled and sliced
• 1 teaspoon fresh garlic, chopped
• 2 carrots, peeled and sliced 1/8-inch bias
• 3 stalks celery, rinsed and cut ½-inch bias
• 1 red pepper, seeded and sliced into 1-inch strips
• 1 green pepper, seeded and sliced into 1-inch strips
• 1 yellow pepper, seeded and sliced into 1-inch strips
• 2 portabella mushrooms, cut into 1-inch cubes
• 1 medium green zucchini, thinly sliced
• 1 cup sliced baby bok choy
• 2 tablespoons rice vinegar
• 2 tablespoons soy sauce
• 1 tablespoon sesame seeds
• 1 teaspoon chili flakes (optional)